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Today's business dynamics are rapidly changing, especially for the private sector in the world and new paradigm which is called as the electronic environment is starting to dominate the business life. Most of the companies trying to adapt these changes with their company structure and most of them were re-engineered their business models with this new wave. In Turkey, government is trying to transform their services in to digital world for gaining more speed, decreasing the costs and satisfying their citizens as well as these efforts are named as e-government transformation. In addition to this, Turkish government trying to adapt procurement process as electronic procurement or e-procurement throughout that transformation process and establish procurement based web pages. At the same time, private sector in the world is using more efficiently the B2B portals and systems for that purpose. In this article, we are going to examine the current situation of e-procurement efforts in Turkey and compare the effective B2B portal based procurement systems for detecting problems and faced difficulties throughout the transformation process and finally, propose new ideas for increasing the transformation success.